Diffuser evaporator of active substance



FIG. 1 is a rear, left side, and top perspective view of a diffuser evaporator of active substance showing the new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front, left side view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a top plan view thereof. 

CLAIM The ornamental design for a diffuser evaporator of active substance, as shown and described. 